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The Mesozoic Carpentaria Basin and the Cainozoic Karumba Basin, north Queensland

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Abstract

The Jurassic - Cretaceous Carpentaria Basin of northern Queensland and eastern Northern Territory and adjacent marine areas
approximates to the Gulf of Carpentaria and its eastern and southern hinterland (Fig. 1). The Cainozoic Karumba Basin overlies
the Carpentaria Basin; its boundaries are the watersheds of the Gulf of Carpentaria drainage basin (Fig. 18). This Bulletin
and its maps are a summary and a synthesis of geological information collected during field surveys which began in 1969 by
combined parties of the Bureau of Mineral Resources (BMR) and the Geological Survey of Queensland (GSQ), and of all other
geological investigations in the area. It also includes a review of geophysical surveys of both Basins. Local detail can be
found in the Progress Reports. Explanatory Notes, and papers listed in Tables 1 and 2. Geological mapping was based on the
use of aerial photographs of the RC9 Series (1:80 000) except in the northeast of Cape York Peninsula where the older K17
series (1:48 000) and other aerial photographs were used to obtain complete coverage. Landsat imagery was used to supplement
aerial photographs. Mapping was supplemented by shallow stratigraphic drilling and augering (see Table 1) and by wire-line
logging of water and other bores under contract (Down Under Well Services Pty Ltd) and by personnel from Geophysical Branch,
BMR. Smart & others (1974) list details of holes logged; copies of logs are held by BMR, GSQ. and the Irrigation and Water
Supply Commission (IWSC), Brisbane.